Temperature sensors survive refinery environment
An
ABB Automation Tech (Instrumentation + Automation) product story
Edited by the Engineeringtalk editorial team
Jul 7, 2008
Each thermocouple head incorporates Type N protection of the sensor connections and nonsparking protection for hazardous zones where an explosive gas mixture is not expected, but could occur.
ABB has supplied Q8 National Petroleum with twelve 23m long multipoint temperature measuring devices for the refurbishment of atmospheric residue desulphuriser reactors in the Mina Abdulla Refinery in Kuwait.
Manufactured at ABB's Workington plant in the UK, the multisensing elements make measurements along the length and width of the reactor, allowing distributed temperature measurements to be derived from one entry into the pressure vessel.
With three measuring points each, plus duplex sensors for redundancy, the multipoints have a stainless steel sheath for high corrosion resistance.
Each thermocouple head incorporates Type N protection of the sensor connections and nonsparking protection for hazardous zones where an explosive gas mixture is not expected, but could occur.
They will be used to measure temperatures over a multiple positions with a single reactor access point.
The size of the multipoints, plus the pressing need to get the equipment to the installation site during Q8's plant shutdown window, required an unusual method of delivery.
A Boeing 747 aircraft with an opening nose cone was used to carry the equipment to Kuwait.
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